Untrace_var is permitted at safe level 4.

untrace_var在safe level 4是允许的。

youdao

Really, the safe level of exposure is no exposure.

吸烟真正的安全水平就是一点儿都不吸。

youdao

Syslog operations are permitted at safe level 4.

Syslog操作在safe level 4是允许的。

youdao

But clearly there is no such thing as a safe level of cigarette smoke exposure.

VOA: special.2009.06.03

There's a lot of engineering that we've already talked about in terms of producing quantities of the vaccine, producing it reliably, producing it safe, distributing it, and keeping track requires a level of sophistication that maybe you wouldn't have thought about initially.

我们已经讲过很多工程方面的内容,比如大批量制造疫苗,制造可靠的疫苗,制造安全的疫苗,分派发放疫苗,以及一个完善的随访监测系统,你们最早可能没有想过这些冬夜

耶鲁公开课 - 生物医学工程探索课程节选

He notes that research has found no safe level of lead.

VOA: special.2009.08.31

The goods seized from them included mascara with 20 times the safe level of lead.

BBC: eBay fake make-up sale: Leanne Wetheim sentenced

President VLADIMIR PUTIN (Russia): (Through translator) This has to be done, of course, at a moderate and safe level.

NPR: Russia Plans Nuclear Power Expansion

The European Union says no safe level of exposure has yet been identified.

BBC: News Online